BEDFORD - Hillsborough County Attorney Patricia M. LaFrance assured residents progress is being made toward solving the apparent home invasion in which a Bedford anesthesiologist and his wife were brutally attacked 12 weeks ago.

"Bedford police and state police are making progress along with consultation with my office," LaFrance said in a telephone interview Friday.

"We do have a sense of what happened. However, we are not prepared to share that at this time," LaFrance added.

She revealed little about the crimes, would not specify progress being made nor attempt to ease public concern over the Nov. 24 home invasion at 7 Proclamation Court that left Dr. Eduardo W. Quesada, 52, and his wife, Sonia Quesada, 29, seriously injured.

"I'm not prepared at this time to give out any more information at the risk of jeopardizing a future prosecution," LaFrance said.

"I realize it's very frustrating for people and scary," LaFrance said.

"My first obligation, the chief's first obligation, is obviously to find the person or persons responsible for committing this crime. We owe that to Dr. and Mrs. Quesada. We owe that to the people of Bedford to put their minds at ease," she said.

Officials don't know if the Quesadas' house was targeted and still are trying to determine who the suspect or suspects are, she said.

She urged residents to take "normal precautions" and not "be paralyzed by fear."

The criminal investigation into the Nov. 24 home invasion is active and aggressive, she said.

Six weeks after the home invasion, police found Sonia Quesada dead and Dr. Quesada unconscious at his mother's 49 Kensington Lane home in Bedford. There was a large amount of prescription medication in the room.

"We are looking at them as two completely separate investigations with the obvious exception that they involved the same people," LaFrance said.

The state Medical Examiner's office has not yet determined cause and manner of Sonia Quesada's death, but has said it does not appear to be homicide. They are waiting for toxicological tests results, which could take at least eight weeks.

LaFrance would not say if a suicide note was found at the 49 Kensington Lane condominium or whether the couple had legitimate prescriptions for the drugs found there.

While the probe into Sonia Quesada's death is ongoing, LaFrance said "I'm not sure I would characterize it as a criminal investigation. ... We would call it an untimely death."